Circular saw



FIG. 1 is a front perspective view of a circular saw showing the new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view of a second embodiment of the circular saw showing a skyhook attachment.

The broken lines that define the bounds of the claimed design form no part thereof.

The broken lines shown in drawings form no part of the claimed design. 

The ornamental design for a circular saw, as shown and described. 